A newly revealed summit of terrorists raises fears of a fresh plan to attack the U.S. This bombmaker and pilot could be a key player

It was a gathering of terrorism's elite, and they slipped silently into Pakistan from all over the world in order to attend. From England came Abu Issa al-Hindi, an Indian convert to radical Islam who specializes in surveillance. From an unknown hideout came Adnan el-Shukrijumah, an accomplished Arab Guyanese bombmaker and commercial pilot. And from Queens in New York City came Mohammed Junaid Babar, a Pakistani American who arrived with cash, sleeping bags, ponchos, waterproof socks and other supplies for the mountain-bound jihadis.

The March 2004 terrorist summit in the lawless province of Waziristan, described to TIME by Pakistani President Pervez...